Improved ice-cream receptacle



EDWARD A; c. RoULSToNE, or BOSTON, MASSACHUSETTS. 1- Deum Panna N0.s7,71o, dated nza/mh 9,1869.

llvllPlitoiEl ICE-CREAM RECEPTACLE.

The, Schedule referred to inV these Letters Patent and making part-ofthe Mme.

`To all @chem it 'ma/y concern.-

Be it known that I, EDWARD A. G. RoULsToNn, of Boston, in the county ofSuffolk, and State of Massa husetts, have invented a Portable Receptaclefor Holding and Preserving Ice-Cream, sherbet, andv other articles offood in a frozen state, of which the following' is a full, rclear, andexact description, refer-- ploycd.

Figure 5 is av central verticalV section through mypreserving-receptacle, withall of its parts in place, ready'fo'rtransportation.

The ordinary method of preserving frozen cream, sherbet, Ste.,v frommelting, is to surround the recep tacle containing it, with ice andsaltfplaced in a tub or pail,'iu which it is transported from place-toplace.

This method ishowever, objectionable for the following reasons: l i

The ice, as it melts,l requires to be renewed, or the contents of thereceptacle would become unfit for use. Besides the expense of`obtainingxa new supply of ice, and the time vand labor involved inplacing it around the receptacle, it frequently` happens that no ice isto be had where the cream, 85e., is to be used; and'furthermore, it isinconvenient. to handle a tub or pail, which is necessarily large, tocontain the ice and salt, with the receptacle surrounded by it. y

'Io Vremedy'the above-mentioned difficulties is the object of my'invention, which consists in a portable receptacleprovided with one ormore chambers for receiving the frozen cream, sherbet, 85o., or themould or other package in which it is placed, the said receptacle beingprovided ivith a removable top, and an outer casing, enclosing achamberfree from air, or one packed with charcoal, or other-non-conductor ofheat, by which construction, after the article is frozen, it may betransported with ease, and be preserved for a -considerable length oftimewithout melting.

To enable others skilled in the art to understand and use my invention,I will proceed to describe the manner in which I have carried it out.

In the said drawings- A represents a cylindrical vessel, or receptacle,of tin or other suitable material, provided with a handle,

a, and with an inner casing, b, and an outer casing, c,-

placed ata sufficient distance apart to forma cominodious circularchamber, B, for the reception of charcoal, or4 other suitablenon-conducting material, which is introduced through the removablebottom, d.

Enclosed by the inner casing b, is a cylindrical chamber, C, occupyingthe centre of the receptacle, the bottom, e, of this chamber beingplaced at a distance from the bottom, d, of the receptacle A, equal toabout the width or space between the inner and outer casiugs b c.

Into the chamber O4 is snugly fitted a cylindrical case, or mould, D,into which the cream is placed, and frozen by the employment of afreezerf ina wellknown manner.

g is a lid for" covering the top of the mould D.

The top of the chamber O is closed by a. removable box, or receptacle,E, containing charcoal, or other suitable non-conducting material, apacking being provided for thev said box, if required, to enable it to tsnugly, and exclude the passage of the air from without.

in which it is frozen, one or more of the individual moulds being takenout. of the receptacle A, without affecting those remaining, which iscontrary to the usual method, where creams are cut from large moulds andthen placed upon dishes, by which method, the

` cream, Svc., is soon melted, and rendered unfit for the use intended.

By surrounding the frozen cream (on all'sides, and

bothvits top and bottom,) with charcoal, powdered -or not, the airoutside the receptacle is prevented from changing, or in any wayiniiuencing the temperature -of the frozen cream for a considerablelength of time, owing to the non-conductive properties of the carbon inthe charcoal; and as the whole receptacle so con.- structed, occupiesmuch lessbulk than the tub or pail ordinarily used for preserving frozencreams, Svc., it may be conveniently carried iiom place to place,Without soiling the hands or clothes, as there is also no liability ofthe temperature ofthe cold cream within being imparted through thecharcoal, tor produce a moisture` ou the outside ofthe receptacle.

Instead of the employment of a packing of charcoal,

lice andsalt may be used in the chamber B, formed by the double lining,or casing, in which case the bottom, d, may be so made as to be readilyremoved and returned to its place; but I very much prefer the use ofpowdered charcoabas there would be no further expense 4than itsoriginalcost, while that incurred by the constant removal of the ice, and thetime and bor involved in the operation, are serious objections to itsuse.

By thev employment of my improved preserver, the

frozen cream, sherbet, Sac., after being carried home,

G G are a series of small receptacles, made ,to-'fit and a portionconsumed, may be replaced, andl kept for use for' several hoursthereafter, without being softened.

It is evident that the air Within the chamber B may be exhausted byconnecting it with an air-pnmp,in which case the frozen cream would bekept from melting longer than if the chamber contained neither ice,salt, nor charcoal, but occupied by air. Y

Instead of the receptacle, constructed as above described, more than onechamber, C, may be made, and a tub, or pail, or other vessel be providedwith a double lining, and the removable top maybe used or not, ifdesired, without departing from thc spirit of my in vention.

I am aware that re'igerators and ice-pitchers have been constructed witha double casing, having the space between them lled with charcoal, &c.;this, therefore, I do not claim. And although my receptacle may be usedas a freezerfi and answer a good purpose, still 1 do not intend it bruse as such, but only to keep frozen cream,'&c., in aA frozen state fora longer time, and with less trouble and expense than that incidental tothe ordinary methods nor:l in use for the same purpose.

Freezing creams, 311e., in small or individual moulds,

and serving them in the same, l(Without turning them outin a dish orplate is anovelty; and besides being a saving of cream, I am enabled toornament the tops of the creams so frozen, in fancy colors, orotherwise, or with any design, or with the name ofthe individual user,thus giving thema richness to the eye and taste', which could notbe doneif turned out of the mould in the usual way.

These individual creams, after being frozen in a freezer, may bepreserved in my portable preserving-receptacle, or 'may be preservedbythe use`ot ice, in any Well-known manner.

Ola/im;

What I claim as my invention, and desire to secure by Letters Patent, is

A portable receptacle, A, provided with one or more chambers, C, auinner and outer casing, b q, and a removable top, E, in combination withthe mould D, and with or without the individual moulds G, in which thecream, 85o., is frozen, and served Without'being turned out,substantially as and for-the purposes set forth.

EDWARD A. G. ROULSTONE. Witnesses: N. W. STEARNS, W. J. CAMBRIDGE.

